Citraconic acid

Citraconic acid
Names

IUPAC name (2Z)-2-Methylbut-2-enedioic acid
Other names Citraconate; Methylmaleic acid; cis-Methylbutenedioic acid
Identifiers
CAS Number	498-23-7^Y
ChEBI	CHEBI:17626^Y
ChemSpider	553689^Y
DrugBank	DB04734^Y
Jmol interactive 3D	Image
PubChem	643798
InChI InChI=1S/C5H6O4/c1-3(5(8)9)2-4(6)7/h2H,1H3,(H,6,7)(H,8,9)/b3-2-^Y Key: HNEGQIOMVPPMNR-IHWYPQMZSA-N^Y
SMILES O=C(O)\C=C(/C(=O)O)C
Properties
Chemical formula	C₅H₆O₄
Molar mass	130.10 g·mol⁻¹
Appearance	Monoclinic crystals^[1]
Density	1.62 g/cm3^[1]
Melting point	~90 °C (decomposition)^[1]
Solubility in water	Freely soluble^[1]
Hazards
R-phrases	R22^[2]
S-phrases	S36^[2]
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Y verify (what is ^YN ?)
Infobox references

Citraconic acid is one of the pyrocitric acids formed upon the heating of citric acid.^[1] It is the cis-isomer of mesaconic acid.

References

1 2 3 4 5 Budavari, Susan, ed. (1996), The Merck Index: An Encyclopedia of Chemicals, Drugs, and Biologicals (12th ed.), Merck, ISBN 0911910123
1 2 Citraconic acid

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